EP0360593A3 - Method of producing porous ceramic honeycomb structural bodies - Google Patents

Method of producing porous ceramic honeycomb structural bodies Download PDF

Info

Publication number
EP0360593A3
EP0360593A3 EP19890309582 EP89309582A EP0360593A3 EP 0360593 A3 EP0360593 A3 EP 0360593A3 EP 19890309582 EP19890309582 EP 19890309582 EP 89309582 A EP89309582 A EP 89309582A EP 0360593 A3 EP0360593 A3 EP 0360593A3
Authority
EP
European Patent Office
Prior art keywords
honeycomb structural
ceramic honeycomb
forming agent
structural bodies
pore forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890309582
Other languages
German (de)
French (fr)
Other versions
EP0360593A2 (en
EP0360593B1 (en
Inventor
Kunikazu Hamaguchi
Takashi Harada
Toshiyuki Hamanaka
Kazuhiro Miyahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP0360593A2 publication Critical patent/EP0360593A2/en
Publication of EP0360593A3 publication Critical patent/EP0360593A3/en
Application granted granted Critical
Publication of EP0360593B1 publication Critical patent/EP0360593B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
    • C04B38/0645—Burnable, meltable, sublimable materials
    • C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

A method of producing ceramic honeycomb structural bodies by firing extruded green bodies of ceramic raw material mixed with a pore forming agent is disclosed. As the pore forming agent, use is made of flammable carbon powder having a degree of loss in weight of 50% or more after a heat treatment at 650°C for one hour in air. By using such a flammable carbon powder as the pore forming agent, a retention time at about 1000°C for burning the pore forming agent in the firing process is shortened and as a result a firing time is shortened without deterioration of quality characteristics of resulting porous ceramic honeycomb structural bodies.
EP89309582A 1988-09-21 1989-09-20 Method of producing porous ceramic honeycomb structural bodies Expired - Lifetime EP0360593B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP235082/88 1988-09-21
JP63235082A JP2562186B2 (en) 1988-09-21 1988-09-21 Manufacturing method of porous ceramic honeycomb structure

Publications (3)

Publication Number Publication Date
EP0360593A2 EP0360593A2 (en) 1990-03-28
EP0360593A3 true EP0360593A3 (en) 1991-03-06
EP0360593B1 EP0360593B1 (en) 1993-03-03

Family

ID=16980798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89309582A Expired - Lifetime EP0360593B1 (en) 1988-09-21 1989-09-20 Method of producing porous ceramic honeycomb structural bodies

Country Status (3)

Country Link
EP (1) EP0360593B1 (en)
JP (1) JP2562186B2 (en)
DE (1) DE68905124T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222671C2 (en) * 1992-07-10 1994-06-01 Bergwerksverband Gmbh Entrained-flow reactor for the production of pyrolysis coke
JPH07309707A (en) * 1994-05-16 1995-11-28 Ngk Insulators Ltd Lightweight antifungal ceramic and antifungal ceramic filter
DE69817679D1 (en) * 1997-06-12 2003-10-09 Toyota Chuo Kenkyusho Aichi Kk particulate
ATE372449T1 (en) 2001-12-03 2007-09-15 Hitachi Metals Ltd CERAMIC HONEYCOMB FILTER
WO2008115816A1 (en) * 2007-03-16 2008-09-25 Honeywell International Inc. Open ceramic media structure and method of manufacturing
CN113912412A (en) * 2021-10-22 2022-01-11 深圳市吉迩科技有限公司 Porous ceramic atomizing core, preparation method thereof and electronic cigarette
CN113788704B (en) * 2021-11-01 2022-08-30 山东瀚实环保设备有限公司 Preparation method of porous ceramic with gradient pore structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940301A (en) * 1974-08-01 1976-02-24 Caterpillar Tractor Co. Method of manufacturing an open cellular article
FR2417481A1 (en) * 1978-02-21 1979-09-14 Kansai Thermal Insulating Ind PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT
DE3541372A1 (en) * 1984-11-24 1986-06-05 Nippondenso Co., Ltd., Kariya, Aichi EXHAUST GAS CLEANING FILTER AND METHOD FOR THE PRODUCTION THEREOF
EP0278750A1 (en) * 1987-02-12 1988-08-17 Ngk Insulators, Ltd. Cordierite honeycomb structural bodies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940301A (en) * 1974-08-01 1976-02-24 Caterpillar Tractor Co. Method of manufacturing an open cellular article
FR2417481A1 (en) * 1978-02-21 1979-09-14 Kansai Thermal Insulating Ind PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT
DE3541372A1 (en) * 1984-11-24 1986-06-05 Nippondenso Co., Ltd., Kariya, Aichi EXHAUST GAS CLEANING FILTER AND METHOD FOR THE PRODUCTION THEREOF
EP0278750A1 (en) * 1987-02-12 1988-08-17 Ngk Insulators, Ltd. Cordierite honeycomb structural bodies

Also Published As

Publication number Publication date
DE68905124D1 (en) 1993-04-08
EP0360593A2 (en) 1990-03-28
JP2562186B2 (en) 1996-12-11
DE68905124T2 (en) 1993-07-22
EP0360593B1 (en) 1993-03-03
JPH0283278A (en) 1990-03-23

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